A kind of preparation method of aluminum foam

A technology of foamed aluminum and aluminum chips, applied in the field of foamed aluminum materials, can solve the problem of high cost and achieve the effect of low cost, high compactness and uniform porosity

Active Publication Date: 2018-06-19
湖北中启新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing methods for preparing foamed aluminum are relatively expensive.

Method used

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  • A kind of preparation method of aluminum foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of aluminum foam, the method specifically comprises the following steps:

[0026] Step 1, immersing and cleaning the scrap aluminum in ethanol, washing in distilled water and soaking in secondary ethanol to form an alcohol solution of scrap aluminum;

[0027] Step 2, after mixing the foaming agent and the binder, adding the alcohol solution of crushed aluminum chips, and stirring evenly to obtain the mixed solution;

[0028] Step 3, put the mixed solution into the mold for ultrasonic vibration for 1 hour, and then rapidly cool down and solidify;

[0029] In step 4, the solidified mixed material is placed at a low temperature for 2 hours, then sintered at a high temperature for 2 hours, and the foamed aluminum can be obtained after natural cooling.

[0030] The formula of described aluminum foam is as follows:

[0031] 20 parts of crushed aluminum chips, 2 parts of foaming agent, 10 parts of adhesive.

[0032] The foaming agent adopts organic foam...

Embodiment 2

[0040] A preparation method of aluminum foam, the method specifically comprises the following steps:

[0041] Step 1, immersing and cleaning the scrap aluminum in ethanol, washing in distilled water and soaking in secondary ethanol to form an alcohol solution of scrap aluminum;

[0042] Step 2, after mixing the foaming agent and the binder, adding the alcohol solution of crushed aluminum chips, and stirring evenly to obtain the mixed solution;

[0043] Step 3, put the mixed solution into the mold for ultrasonic vibration for 3 hours, then rapidly cool down and solidify;

[0044] In step 4, the solidified mixed material is placed at a low temperature for 4 hours, then sintered at a high temperature for 8 hours, and the foamed aluminum can be obtained after natural cooling.

[0045] The formula of described aluminum foam is as follows:

[0046] 30 parts of crushed aluminum chips, 4 parts of foaming agent, 15 parts of adhesive.

[0047] The foaming agent adopts organic foaming...

Embodiment 3

[0055] A preparation method of aluminum foam, the method specifically comprises the following steps:

[0056] Step 1, immersing and cleaning the scrap aluminum in ethanol, washing in distilled water and soaking in secondary ethanol to form an alcohol solution of scrap aluminum;

[0057] Step 2, after mixing the foaming agent and the binder, adding the alcohol solution of crushed aluminum chips, and stirring evenly to obtain the mixed solution;

[0058] Step 3, put the mixed solution into the mold for ultrasonic vibration for 2 hours, then rapidly cool down and solidify;

[0059] In step 4, the solidified mixed material is placed at a low temperature for 3 hours, then sintered at a high temperature for 5 hours, and the foamed aluminum can be obtained after natural cooling.

[0060] The formula of described aluminum foam is as follows:

[0061] 25 parts of crushed aluminum chips, 3 parts of foaming agent, 13 parts of adhesive.

[0062] The foaming agent adopts organic foaming...

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Abstract

The invention relates to a method for preparing foamed aluminum. Step 1: Soak aluminum chips for ethanol cleaning, distilled water washing and secondary ethanol immersion to form an alcohol solution of aluminum chips; Step 2: Mix a foaming agent with an adhesive Finally, add aluminum chip alcohol solution, stir evenly to obtain a mixed solution; step 3, put the mixed solution in a mold for ultrasonic vibration for 1-3 hours, and then rapidly cool down and solidify; step 4, place the cured mixed material at low temperature for 2 ‑4h, and then high-temperature sintering for 2‑8h, after natural cooling, aluminum foam can be obtained. The raw material of the preparation method of the present invention is aluminum shavings, the cost is low, and the precursor is obtained by ultrasonic extrusion, which can make the foamed aluminum material obtained by foaming have higher compactness, and the porosity becomes more uniform, and Pores are smaller in diameter.

Description

technical field [0001] The invention belongs to the technical field of foamed aluminum materials and relates to a preparation method of foamed aluminum. Background technique [0002] Aluminum foam is a kind of porous material with high porosity, which has small specific gravity, heat resistance, sound absorption, shock resistance, and special physical and chemical properties. It can be used not only as a functional material, but also as a structural material. It has broad application prospects in the fields of machinery, electronics, construction, transportation, light chemical industry, military industry, etc., and the market prospect is attractive. Chemical fillers and catalysts, heat exchangers, flame retardant materials, sound insulation, shock absorption and impact resistance, electromagnetic shielding, etc. As an excellent sound-absorbing material and weight-reducing material, aluminum foam is widely used in construction. Building facilities have many components that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/11B22F1/00
CPCB22F3/1125B22F1/107
Inventor 杨林
Owner 湖北中启新材料科技有限公司
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